ROHM Semiconductor USA, LLC Voltage Regulators - Linear BD3551HFN-TR

The BD3551HFN-TR is an ultra low-dropout linear voltage regulator designed for applications requiring a low input voltage to low output voltage conversion. It operates within an input voltage range of 0.95V to VCC-1V and can provide a maximum output current of 1.0A. The output voltage can be adjusted between 0.65V and 2.7V using an external resistor, making it versatile for various applications. This regulator features a built-in N-Channel MOSFET with a typical ON-resistance of 200mOc, which helps minimize dropout voltage and reduce conversion losses. It includes a high-precision reference voltage circuit, an undervoltage lockout (UVLO) circuit, and a thermal shutdown (TSD) function for enhanced reliability. The NRCS (soft start) function allows for controlled output voltage ramp-up, which is beneficial in managing inrush current during startup. The BD3551HFN-TR is suitable for use in notebook computers, desktop computers, LCD TVs, and other digital appliances, and operates effectively within a temperature range of -10¬8C to +100¬8C. It is packaged in an 8-pin HSON configuration, measuring 2.90mm x 3.00mm x 0.60mm, which supports compact designs.